MLSE equalization and decoding for multipath-fading channels

Author

Sheen, Wern-Ho ; Stüber, Gordon L.

Author_Institution

Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

fYear

1990

fDate

3-6 Sep 1990

Firstpage

276

Lastpage

281

Abstract

A combined MLSE (maximum likelihood sequence estimation) equalizer and decoder with D-diversity reception is analyzed for slowly time-varying frequency-selective Rayleigh fading channels. An upper bound on the (decoded) bit error probability is derived. This bound is tight for high signal-to-noise ratios or when diversity reception is employed. A method based on a one-directional stack algorithm is proposed for calculating the bound that efficiently uses computer memory. Two systems have been analyzed using this procedure and compared with computer simulations: BPSK (binary phase shift keying) with a three-tap channel and coded quadrature PSK with a two-tap channel

Keywords

decoding; diversity reception; equalisers; errors; fading; phase shift keying; signal detection; telecommunication channels; BPSK; D-diversity reception; MLSE decoding; MLSE equalization; binary phase shift keying; bit error probability; coded quadrature PSK; maximum likelihood sequence estimation; multipath-fading channels; one-directional stack algorithm; signal-to-noise ratios; three-tap channel; time-varying frequency-selective Rayleigh fading; two-tap channel; Binary phase shift keying; Diversity reception; Equalizers; Error probability; Fading; Frequency estimation; Maximum likelihood decoding; Maximum likelihood estimation; Signal to noise ratio; Upper bound;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Symposium, 1990. ITS '90 Symposium Record., SBT/IEEE International

Conference_Location

Rio de Janeiro

Type

conf

DOI

10.1109/ITS.1990.175612

Filename

175612